When interacted with, it will summon Gorvek and produce a line of purple smoke, as in the fight. The smoke is not visible to anyone except the user. After use, the horn takes 1 minute to recharge. When used, it prompts the message: "You blow the signal horn to call in some heavy duty firepower! The heavy duty firepower doesn't seem to be accomplishing much." Interacting with the horn in Telos' arena after defeating Telos will give the player an odd luminous ball.